Typographical line-casting machine.



C. MUEHLBISEN.

TYPOGRAPHICAL LINE CASTING MACHINE.

APPLICATION FILED SEPT. 21, 1910.

1,058,321. Patented Apr. 8, 1913 2 SHEETSSHEET l.

C. MUEHLEISEN.

TYPOGRAPHICAL LINE CASTING MACHINE. APPLICATION FILED SEPT,21,1910.

1,058,321 Patented Apr. 8, 1913.

2 SHEETS-SHEET 2.

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COLUMBIA PLANOGRAPH co.,\vAsHlNaTON, D c.

UNITED STATES PATENT OFFICE.

CARL MUEHLEISEN, 0F BERLIN, GERMANY, ASSIGN 'OR 'IO MERGENTHALERLINOTYPE COMPANY, A CORPORATION NEW YORK.

Specification of Letters Patent.

Patented Apr. 8, 1913.

. Application filed September 21, 1910. Serial No. 583,051.

particularly to the means whereby the knives used for trimming theresultant cast lines, are adjusted for different body dimensions throughthe intermediary of the wheel carriage upon which are mounted theline-casting molds.

The said invention is an improvement or modification of that for which apatent was granted under No. 941,884 on November 30th 1909. According tothat patent the apparatus was so constructed that the mold wheel orcarrier effected the movement of the adjustable knife in only onedirection, while a spring or springs moved it in the opposite direction;the object of the present invention is to so construct the saidapparatus that the mold wheel or carrier shall effect or control theadjustment of the movable knife both toward and away from the companionor relatively fixed knife.

The invention will be best understood by reference to the accompanyingdrawings in which, as an example, it is shown applied to appropriateparts of the; machine known commercially under the trademark Linotype.

In these drawings Figure 1 is a right-hand side elevation showing theknife-block, and, in vertical section, a portion of the mold carrier;Fig. 2 is a rear elevation of the trimming knives and knife-block; Fig.3 is a horizontal section taken about on the line 33 of Fig. 1, and withcertain parts omitted; Fig. 4 is a front elevation of the mold carrier,with two molds thereon of respectively difierent body dimensions; Fig. 5is a view corresponding to Fig. 1, of a modified construction of thedevices shown in that figure; Fig. 6 isa rear elevation of theadjustable knife and other adjacent parts, and Fig. 7 is a plan, partlyin section, and Fig. 8 an elevation of detached parts of the apparatusshown in Figs. 5 and 6.

1 represents the fixed knife-secured, as

ordinarily to the vise frame or other relatively stationary part 2 (Fig.3) of the machine frame; 3 represents the adjustable knife, horizontallyguided on the knife block 4 in well-known manner so that it can be movedtoward and away from the companion knife 1, and only thus. Theknifeblock 4 as ordinarily is detachably secured to the part 2.

5 is a spring (there are preferably two such springs) constantly tendingto move the adjustable knife 3 farther away from the fixed knife 1.

6 is the mold carrier which, as illustrated, takes the form of thewell-known mold wheel; 7 and 8 are two molds secured to the mold carrier6, of respectively difierent body dimension.

All of the foregoing parts are common to .both of the constructionsillustrated in the drawings.

With particular reference to the arrangement represented in Figs. 1, 2and 3, 9 is a double stepped wedge having at each end, two surfaces 10,11 situated in two different parallel vertical planes, the said surfacesbeing connected by an inclined or curved surface 12, and the distanceapart of the two said planes corresponding with the difference in thebody dimensions of the two molds 7, 8. The surfaces 10, 11 are adaptedto co-act with abutment screws 13 adjustable in the lugs 14 integralwith the knife block 4.

15 is a pin fast to the wedge 9 and projecting from .the right-hand sidethereof, 16 is a three-armed lever pivoted on a stud 17 fast to theknife block, and the middle arm of which, by its forked end, engageswith the pin 15. The upper and lower arms of the lever 16 are eachpivoted to a cranked rod 18 or 19 which, by a screw and slot 20, isguided on the side of the knife block 4. The rear ends of the rods 18 19extend into the forward path ofthe mold carrier, and adjacent to the twomolds 7 and 8 there are provided two recesses or holes 21, 22 adapted tofreely receive the rearward ends of the rods 18, 19 respectively. Themold carrier 6 is also provided with the usual registering sockets orpins 23; these, however, constitute no part of the present invention.

By the foregoing arrangement the wedge 9 must occupy its lower positionwhen the mold 8 of the smaller body dimension is in use, and its higherposition when the mold 7 of the larger body dimension is in use, and forthis purpose the mold carrier 6 is adapted to correspondingly operatethe two rods 18, 19. Thus, when the mold 7 is in use, the advance of themold carrier 6 presents a solid part of the latter to the rod 18, andreceives the rear end of the rod 19 in the hole 22, and in the reversemanner, when the mold Sis in use, the advance of the mold carrier 6presents a solid part of the end of the rod 18 in the hole 21.Consequently, if the advancing mold carrier 6 finds either of the rods18 or 19 projecting into its forward path at a part at which it isunprovided with a hole 21 or 22, that red will be moved forward and thewedge 9 will be correspondingly raised or lowered.

hen for the two molds 7 and 8- represented in Fig. 4, others aresubstituted, for larger or smaller body dimension, but be tween whichdimensions there is the same relative difference as in the substitutedmolds, the screws 13 can be adjusted to provide for such alteredconditions, without changing the wedge 9, but when the two substitutingmolds have not the same relative difierence of body dimension as thesubstituted molds, then a new wedge having the desired different steprelationship, must be substituted for that last used inthe machine. Thearrangement shown in Figs. 5 and 6 allows of the preliminary or manualknife adjustments for changes of body dimension being more readilyeffected than does that previously described, and without risk ofdisturbing the parallelism of the knives as is the case when theabutment screws 13 are turned. Inv this arrangement the wedge 9 is ofthe inclined type as distinguished from: the stepped type shown in Fig.2, and it has, as already well known in the art, two inclined surfaces,one at each end; it is connected. with the three armed lever 16 in thesame manner as that before described with reference to Fig. 1,.but thesaid lever, as distinguished' from that in. the preceding example, isresiliently connected to the rods 18,. 19. For this purpose each of therods 18, 19' hasa forwardly extending arm terminating in a hook 2 1 towhich is attached one end of a-spri-ng" 25 whose other end is attachedto a pin 26 adjustably secured in the respective armof the lever 16.This pin 26- penetrates a slot 27 in the respective rod 18 or 19 andterminates in a head 28 between which: and a collar 29' the said rod iscapable of sliding relatively to the pin 26 in the y direction of thelength of the slot 27, and

only thus.

The rear ends of the'rods 18, 19 of Figs. 5 and 6,. are guided in lugs30 integral with the knife block 4,. and on the back of the wedge 91are: carriedtwo' vertical. adjustable abutment screws 31. adapted toco-act with 33 in the respective arm of the lever 16, and

it may, by a nut 31: or otherwise, be secured in different positionsalong the said slot according to whether the particular body dimensionsto be provided for, require the latter to the rod 19 and recelves therear wedge 9 to be moved in av higher or lower zone.

1n the operation of the last described device, the inward and outwardmovement of the knife 3 relatively to the companion knife 1 (whichlatter is not represented in Figs. 5 and 6) is arrested at the instantat which it is at the pre-determined distance from the said companionknife, by the respective screw 31 abutting against the corresponding lug32, and if at that instant the mold carrier 6 had not yet reached itsforemost position, it, by its further forward motion, moves theappropriate rod 18 or 19 still farther forward, this excess of motion ofthe rod, however, has no effect on the lever 16 and results merely inthe elongation of the respective spring 25 which, on the retraction ofthe mold carrier 6, contracts to its original length.

For adjusting the last described devices to suit molds of other bodydimensions than those indicated, the simplest method is to remove thewedge 9 then in the machine, together with its abutment screws 31, andsubstitute therefor another wedge with its abutment screws so adjustedas to permit of the said wedge being operated in a different zone fromthat appertaining to the substituted wedge. Or, the wedge may have itsscrews 31 adjusted without its position on the machine being disturbed.

In respects other than those just particularized, the operation of thedevices shown in Figs. 5 and 6 is practically the same as that beforedescribed with reference to Figs. 1, 2, 3 and 1.

It will be observed that the only essential requirement in carrying myinvention into effect is to have for each mold means to effect apositive actuation in both directions of the knife adjusting means, andwhile it is preferred to have the surfaces by which the adjustingdevices are actuated on the mold carrier, it will of course beunderstood that these surfaces may be on the mold themselves or locatedelsewhere, as may be most convenient.

Having described my invention, what I claim and desire to secure byLetters Patent is z 1. In a typographical line casting 1n achine, thecombination with two parallel trimming; knives and knife adjustingdevices in operative relationship to one of them, of a mold carrieradapted to operate positively the knife adjusting means in thedirections necessary for both increasing and decreasing the distancebetween the knives.

2. In a typographical line casting machine, the combination with twoparallel trimming knives, means exerting a constanttendency to move oneof the knives relatively to the other, to vary the distance betweenthem, and a wedge adapted to act on the said knife in opposition to thesaid means, of a mold carrier adapted to move positively the wedgelongitudinally in relatively opposite directions.

3. In a typographical line casting machine, the combination of twoparallel trimming knives, a wedge adapted to act on one of the knives tomove it relatively to the companion knife, with a mold carrier adaptedto move positively the wedge longitudinally in relatively oppositedirections.

4. In a typographical line casting machine the combination with twoparallel trimming knives, a spring exerting a constant tendency to moveone of the knives away from the other, and a wedge longitudinallymovable to move the spring-pressed knife toward the other one and toallow the spring to move it away from the said other one, of a moldcarrier adapted to move positively the wedge longitudinally inrelatively opposite directions.

5. In a typographical line casting machine, the combination with twoparallel trimming knives, and a Wedge adapted to act on one of theknives to move it relatively to the companion knife, of two rodsoperatively connected with the wedge adapted to move it in respectivelyopposite directions, and a reciprocable mold carrier, adapted to moveeach of the rods alternately in one direction while the other of suchrods is moved in the opposite direction.

6. In a typographical line casting machine, the combination with twoparallel trimming knives, and a wedge adapted to act on one of theknives to move it rela-- tively to the companion knife, of a lever0poratively connected with the wedge to move it longitudinally, two rodsoperatively connected to the lever adapted to rock it in respectivelyopposite directions, and a reciprocable mold carrier, adapted to moveeach of the rods alternately in one direction while the other of suchrods is moved in the opposite direction.

7. In a typographical line casting machine, the combination of twoparallel trimming knives, a wedge adapted to act on one of the knives tomove it relatively to the companion knife, a lever operatively connectedwith the wedge to move it longitudinally, two rods adapted to rock thelever in respectively opposite directions, resilient means connectingthe rods with the lever,

companion knife, a lever operatively connected with the wedge to move itlongitudinally, two rods adapted to rock the lever in respectivelyopposite directions, resilient means connecting the rod with the lever,a reciprocable mold carrier, adapted to move each of the rodsalternatively in one direction while the other of such rods is moved inthe opposite direction, and abutment devices adapted to stop the wedgeat the respective ends of its travel.

9. In a typographical line casting machine, the combination of twoparallel trimming knives, a wedge adapted to act on one of the knives tomove it relatively to the companion knife, adjustable. abutments adaptedto bear on the said wedge, a lever operatively connected with the wedgeto move it longitudinally, two rods operatively connected with the leverand adapted to rock it in respectively opposite directions, and areciprocable mold carrier, adapted to move each of the rods alternatelyin one direction while the other of such rods is moved in the oppositedirection.

10. In a typographical line casting machine, the combination of twoparallel trimming knives, a wedge adapted to act on one of the knives tomove it relatively to the companion knife, a surface on the wedge beinginclined to the direction of the wedges longitudinal motion, an abutmentbearing on the said surface to move the wedge laterally, a leveroperatively connected with the wedge to move it longitudinally, two rodsoperatively connected with the lever and adapted to rock it inrespectively opposite directions, a reciprocable mold carrier, adaptedto move each of the rods alternately in one direction while the other ofsuch rods is moved in the opposite direction, and adjustable abutmentdevices adapted to stop the wedge at the respective ends of its travel.

11. In a typographical line casting machine, the combination of twoparallel trimming knives, a wedge adapted to act on one of the knives tomove it relatively to the companion knife, a surface on the wedge beinginclined to the direction of the wedges longitudinal motion, anadjustable abutment bearing on the said surface to move the wedgelaterally, a lever operatively connected with the wedge to move itlongitudinally, two rods adapted to rock the lever in respectivelyopposite directions, resilient means connecting the rods with the lever,

a reciprocabl'e mold carrier, adapted to move each of the rodsalternately in one direction While the other of such rods is moved inthe opposite direction, and adjustable abutment devices adapted to stopthe Wedge at the re spective ends of its travel.

12. In a typographical line casting machine, the combination of twovariant molds, tWo parallel knives to trim the slugs delivered from saidmolds, and means for adjusting one knife in one direction or the other,With automatic means for positively actuating the said adjusting meansin both directions according to the size of the mold presented oppositethe knives.

In Witness whereof I have hereunto set my hand in the presence of twoWitnesses.

CARL MUEHLEISEN.

lVitnesses OLDEMAR HAUPT, ARTHUR Sonnonmnz.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

